hi coastal view make a complaint to MB go to their customer services team i did as if had enough eventually after 30 mins of to and fro they caved in when i said i was going to fund it myself – they cancelled the BP install but are only doing OHME in small numbers and ramping up and ditching BP they have given me the difference that they pay BP so with the grant i’ve got £650 towards an install
persevere and they will cave
good luck