Ok, I have a problem. I've already received 3 different invoices...
The first one;
Order-ID  |Description                         |Price|Qty|Pcs| Total
NOIR/ES   |Spanish language kit            |49.00|  1| 24| 49.00
NOIR/SPACE|6.25 units Filco/Cherry/Leopold| 2.00|  1|  1|  2.00
NOIR/TKL  |TKL kit (87 keys)              |69.00|  1| 93| 69.00
TOOL      |Filco key puller               | 6.00|  1|  1|  6.00
Sum       |before fees                    |     |   |119|126.00
PAYPALINT |PayPal fees International      | 3.9%|   |   |  4.91
Total     |                               |     |   |119|130.91
Please pay 50% of --> $130.91 <-- within 7 days via PayPal (no gift!):
So I payed 67$ and then, 3 days later, I received 2 more invoices:
The second one says:
Order-ID  |Description                                 | Price|Qty|Pcs|  Total
NOIR/ES   |Spanish language kit                        | 55.00|  1| 24|  55.00
         |low quantity fee (only 1 orders)            |112.00|   |   |
NOIR/SPACE|6.25 units Filco/Cherry/Leopold             |  2.00|  1|  1|   2.00
NOIR/TKL  |TKL kit (87 keys)                           | 69.00|  1| 93|  69.00
TOOL      |Filco key puller                            |  6.00|  1|  1|   6.00
         |low quantity fee (only 40 orders)           |  1.80|   |   |
         |                                            |      |   |   |
Sum       |before fees                                 |      |   |119| 132.00
         |Low qty fee (Sum < $250)                    |      |   |   |  50.00
LOWQTYFEES|Low qty fees (order more to get these down!)|      |   |   | 163.80
PAYPALINT |PayPal fees International                   |  3.9%|   |   |  11.54
Total     |                                            |      |   |119| 307.34
Payments  |                                            |      |   |   |-134.00
Amount Due|                                            |      |   |   | 173.34
Please pay 50% of --> $173.34 <-- within 7 days via PayPal (no gift!):
Which I dont understand at all!! 307,34$ in keycaps?? And what payments are 134.00$? And even if its "only" 173.34$ (which unfortunatelly I'm not gonna pay for some keycaps...) where are the 67$ I've already payed?.
Later the same day I received the last invoice:
Order-ID  |Description                                 |Price|Qty|Pcs|  Total
NOIR/ES   |Spanish language kit                        |20.00|  1| 24|  20.00
         |low quantity fee (only 1 orders)            |62.00|   |   |
NOIR/SPACE|6.25 units Filco/Cherry/Leopold             | 2.00|  1|  1|   2.00
NOIR/TKL  |TKL kit (87 keys)                           |62.00|  1| 93|  62.00
TOOL      |Filco key puller                            | 6.00|  1|  1|   6.00
         |low quantity fee (only 40 orders)           | 1.80|   |   |
         |                                            |     |   |   |
Sum       |before fees                                 |     |   |119|  90.00
         |Shipping costs                              |     |   |   |  12.00
LOWQTYFEES|Low qty fees (order more to get these down!)|     |   |   |  75.80
PAYPALINT |PayPal fees International                   | 3.9%|   |   |   6.47
Total     |                                            |     |   |119| 172.27
Payments  |                                            |     |   |   |-134.00
Amount Due|                                            |     |   |   |  38.27
Please pay 50% of --> $38.27 <-- within 7 days via PayPal (no gift!):
So finally the price is 172,27$ if I've understood correctly but the invoice says I've already payed 134$ (no way I've only payed 67$). 
So the conclusion is please someone explain me the invoices and how much I have to pay, all these prices and if I've already payed 67$ where is that quantity represented, because I'm getting more and more confused about all of this