Before making the purchase, you should ask the AD to provide the correct straps length accordingly to your wrist size.
Anyway, I think the below 2 options are available for you:
1. punch an extra hole in between the 2 tight and loose holes
2. if the straps width are identical on both sides, speak with your AD if they're willing to trim the top part of the strap and drill 2 holes for the two "H" screws.
Good luck!
