Iād really love to have an explanation for the exchange rate though.
The receipt shows a GBP/EUR rate of 0.8957 (when the interbank rate was actually 1.14726 at the time of the transaction) which would make the euro a stronger currency than sterling - they might already be in anticipation of the UK leaving the EU
EUR 200 would have been at that point GBP 174. With an unfavourable exchange rate maybe 180. 190 tops. Never 223 though.
The only remote (non-defrauding) explanation I could have is a technical glitch and they swapped exchange rates as the EUR/GBP exchange rate actually was 0.87164 and by that quite close to what they printed - GBP 200 were in fact EUR 229.