I am getting amount but it seems that if i accept it, some part of the amount will get deducted..what should i do?
There is nothing really you can do, this is credit card payments and there are separate fees for that.
The other non-practical solution is make clear that you don't accept credit cards, that way you don't need to upgrade but verify your personal account to lift the limit if you haven't done it yet.
Well, if you do not want to accept it, you can always reject the transaction and you pay nothing. The personal account restricts you to 5 credit card transactions per year.