I need someone to help my client to do the tasks below:
1 My client has German tax account, he didn't do tax return since January 2015, but he paid the tax every month(according to their monthly sales figures x 19% tax, he paid tax 200-300 euros per month). The task is to do the tax return since 2015 January to June 2016 for my client （ebay seller）see if he needs to pay more or can get back some money.
2 In March 2016, my client accidentally paid more than 6000 EUROS to German tax bureau. The task is to help him claim back these money.