Use auger to attempt to clear toilet stoppage. Customer stated that there was a toilet that was backing up and only the toilet that was backing up. Stated to customer that the first step to attempt to clear stop will be using a toilet auger and customer agreed. Went ahead and ran auger through toilet and got stoppage cleared. Tested toilet by flushing multiple times and now the toilet is flushing as it should. Also noticed that toilet was rocking. Also water heaters from 2016 coming up on 10 years of age. Will send estimate to pull and reset a toilet and replace water heater.