Paypal won’t let me use my Mastercard?

I want to purchase a laptop on ebay for my boyfriend. costs around 800$. The seller is only accepting paypal. so I joined paypal last week. I added a Debit MasterCard. Paypal deducted 1.95$ and asks for the code as usual. The code was nowhere to be found either on card statement or pass book. I met the bank manager, he said there is no code in entire transaction detail. Now, I purchased a VCC to get my paypal verified. I verified my account. But when I try to purchase again it says “enter 4 digit paypal verification code”. Its been a week and I just don’t know how to complete payment. What should I do?