Dear MemoryCardsIndia,
I understand that you have a discussion with your Account Manager on growing your business and currently you are satisfied with the overall sales.
There are lot of factors that could impact your sales. Needless to say, price leadership is the key in technology products. Apart from that, the supply of your items to increase visibility of your products, participating in promotions, shipping cost, offering free shipping, item description, communication with potential buyers play an important factor towards your sales.
We were facing some intermittent issues with our payment processing infrastructure and there were small windows of time ranging from a few minutes to about an hour or so where payments did not go through. These instances were resolved in half an hour. I would suggest you to report any such issues to our Customer Support team in case you face this in the future.
Kashyap