Since 2017 you WERE not my energy supplier, 2017/2...

Since 2017 you WERE not my energy supplier, 2017/2018 do not have to pay, monthly amount was slightly over 100, and a relatively high consumption, to my shock I have to pay more than 500 in 2019 over the year 2019 while the monthly amount remained the same, and the consumption is less than 2017 or 2018. but in 2020 suddenly set to 160.00 pm without notification! Obviously made a payment arrangement for that high amount, much to regret and forgot by the covid-19 virus, will not be called or emailed but will immediately receive a letter that we are closed, I have had the specifications checked by various parties and nobody understands but something of it! It is a great pity that this is how it works.
Bye!