The IRS has not yet provided guidance on what to do if checks are mailed to the wrong address or deposited into the wrong accounts. Eventually everything will be straightened out. This problem illustrates the need to inform the IRS of any change of address since the last return was filed by submitting Form 8822. Correcting bank account information is another matter that’s yet to be clarified.
Hobby expenses are deductible only up to income from the activity; loss deductions are not allowed.