Simba referral code not working

Im wondering if anyone else has had a similar experience with simba sleeps.

Recently went to use a refer a friend code, but upon check out, simba wouldn’t accept the code, so tried someone elses code, which also wouldn’t be accepted.

So i ended up contacting them about this issue, to which they first asked for the referral code, then after a little bit of back and tooing they then asked for the persons name and there email address to which is something thats not posted on here along with the link provided. With them stating they cannot do anymore more or grant anytime until this information is recieved.

Has anyone else had a simular situation to this? And if so how did you resolve it?