First don’t use Crypto.com. Bandits fees are horrendous because if USD conversion fee if 3%.
NFA but I use KRAKEN. they accept GBP BANK TRANSFER for FREE. Then I buy Matic with GBP ( you can equally use SOL or USDT) and send funds to BC using polygon network so a Matic transfer cost literally 0.5 Matic which is about 25p. The Currency conversion is 2.60 per £1000. This is quite high for crypto exchange but they’re the only exchange now offering free deposit. I think bandit is paying like £30 per £1000 !!