IF you were married to your thai wife in the UK, there is NO WAY to get that marriage certificate stamped/certified OR anything by the UK embassy here in Bangkok.
You need to send it back to Milton Keynes and then it has to go to the Thai Embassy in London. That's the ONLY way you can get the correct stamps so that once you get it back you can get it translated, certified by the MFA and then go to the local amphur and register a thai got married abroad to get the Kor Ror 22
I copied this image from a translation shop a while ago (right after the UK embassy here stopped stamping marriage certificates for brits)
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