Flipkart — Account blocked due to high number of return request

I ordered a Bluetooth mouse(amount-rs1045/-paided) with order idOD[protected] and as my product got delivered i raised a return request.i contracted with them multiple times for return request because my return request was not processing and after 3-4 times after placing a return request my account got blocked now i am unable to place request due to account block.i placed return request due to valid reasons and my return request got accepted but i have another pending issue in that account regarding another order and i am unable to take action due to account being blocked. I contacted customer service and they said " we can only help you after account gets unbanned" and that issue is serious please help me with this matter