form not working for dove digital coupons

On the dub site, there is a field for birthdate and I can’t find the entry for a year or a month. It only goes forward in reverse for the present date. I can arrow back, but I would have to arrow back for as many years as I’ve been alive and that would take all day The link can you people take care of this for me? Tell me what’s wrong with it thanks.

https://www.dove.com/us/en/secure/signup.html