Hi I'm ordering a load of items for a fundraising stall, I used the C20TRENDY code twice to receive 20% off, I have one more bundle of items in my cart but I can only use the code twice which I have done.

Question is:

I can have another lady that is part of the fundraising who could order the last bundle of items, 

can she log into her eBay account but use my computer/ internet, and still get the 20% off?

and can we use my Paypal account (to keep all the transactions in one place) or does it need to be a different paypal account, which we could do, just means payments in 2 places.

I know it's only $20 but when fundraising every cent counts.

and it may be a silly question to some, but I don't know much about computers.

thank You.