If the print of your labels is too high/low or left/right then you should alter the page margins by clicking File>Page setup>Margins to correct the position of the print.
Most of the A4 printers have an accuracy of plus or minus 1mm. So, design your labels while keeping this in mind. Also, try to avoid using borders around the perimeter of the label because any printing inaccuracy will show up.
If the position of the print is getting progressively worse down the page or across the page then it is the label size or the gap between labels that is wrong, so please check the size in the template first. If the size is right then you need to increase or decrease the gap.
If you still have problems please contact the AA Labels Helpdesk team who’d assist you in resolving this problem.