How did you do it without going through the SOLI process - I was told that wasn't possible. Are you a UK resident?
The SOLI process applies to EASA>EASA tranfers. Post Brexit the UK stopped being EASA hence you could hold both. Certain NAAs interpret the current rules to mean that anyone who held a UK issued EASA ATPL or exam credits which reverted to UK-only still has valid EASA credits until 2027.