Hi @Northstar-10,
Welcome to our Community Forums and thanks for posting.
I am so sorry if you also received a similar letter that has caused some confusion.
Again, having looked at your account, I can confirm the letter you received dated 7th May was sent with some incorrect information so please disregard this. The updated letter which you have received today has the correct details- your switchover will come into effect on the 22nd July and not 19th May 2021.
We will be sending you further info week commencing 10th May via Email or SMS with instructions on how to order an adapter.
If there are any issues and an engineer is needed for any reason we can look to book one for you nearer the time.