Some of our offers use 'Vault codes' which are unique, single-use codes. These offer types have a limit for the amount of codes you can request in a 3 month period. This is usually outlined in the Terms and conditions section of the offer page.
The ability to request another code will refresh individually after 3 months.
Vault codes cannot be removed and will remain visible on your account until they expire, even if they've been redeemed.