Need door handle extenders for 2 and a 1/4 inch thick door

Unfortunately, the previous owner did not leave us with a gate key for our newly purchased home. HOA requires us to have the same style of lever handle but we are unable to find anything locally that accommodates a 2 and a half inch backset door handle for a 2 and a 1/4 inch thick door. The replacement handle we have is for the standard thickness of 1-3/8" to 1-3/4". Would you possibly have extenders that accommodate a 2 and a 1/4 inch thick door that would fit onto our handle? Please advise and thank you so much!!