In 2014 SSE converted our 3 single phase meters to one 3-phase meter. This meant that of the original 3 MPANS, two should be deleted. However SSE did not delete the redundant MPANs. This only became apparent when SSE sold its retail business to OVO. At this point OVO created new accounts for the two redundant MPANS and Ovo have been pestering us for payment for the bills generated for the two accounts.
The DNO (SSE) can see that the two redundant supplies do not exist but say that it is OVO's responsibility to get the redundant MPANS removed. I have sent several emails to hello@ovoenergy.com but have had no response.
What should I do next?