I'm not sure if they've changed their TOS in recent years, but I have 3 GoDaddy accounts due to acquiring domains in the past and the seller either handing over the account and/or transferring to a new GoDaddy account for me. Though, I haven't tried using multiple GD accounts to use coupons so not sure how things might pan out for you if that's what your end game is.
Keep in mind there's other (cheaper) alternatives than GD. They'll rape you on .COM renewals. Their coupon to initially register the .COM might look good but they'll get you at $16-$17 renewal the next year.