Failed switch from THTC in Highlands

Hi, I’m struggling with a failed switch from 2 THTC meters to a single Aclara two rate TOU meter. Following the smart meter installation I have been put on Simpler Energy with a single p/kWh for both peak and off-peak. I have called OVO support 3 times to request Economy 7 tariff and each time been told that my request would be actioned. But it hasn’t been. My online account still shows Simpler Energy with a single p/kWh rate.

I’ve opened a complaint today. But the bottom line is my storage heaters are using expensive electricity and OVO don’t seem able or willing to rectify the problem they have caused.

Any advice appreciated. I bet I’m not the only one!

Thanks.