Took real money off me after i met wagering requirements

Complaint summary

I deposited £2000 then £2400 - the second deposit was with a bonus which required meeting wagering requirements over 1 week - throughout this time i was playing sports and casino - my sports balance was up to over 11,000 at one point - then near the end of trying to turnover the £21,000 to meet wagering requirements they stopped me betting on sports and the available balance disappeared, i contacted them and they said there was an issue they were looking into - never got a response - my balance was still showing in casino - when i met the wagering requirements my balance was over £8,000 - when i eventually met the requirements the balance went down to £800 - it would appear they gave me the £700 odd which i would get by wagering but wiped all the money i won via sports - effectively taking around £8,000 from me.

So at the end of this i had deposited around £4,000 - won a substantial amount of money in sports - i then met wagering requirements and they gave me around £700 while taking away all the money i won. Clearly this is not right.

I have been on for 2 days now and still awaiting a response to this clear error.