Good Morning Harryella21,
Welcome to the community supported by you and us the customer members.
Best note that this community forum although set up by PP, monitored by PP including providing lots of support material / FaQ's is not the direct way to contact them. However many problems are solved here without the need of utilising wattBot.
Have you looked within the APP at the meter read you submitted?
Your direct debit will NOT change due to this type of error.
Did you know that from within the APP you can frequently send meter reads as along as you allow a 24 hours before submitting again?
In my view this will just pan out next month.
So as I said check the reading you sent recorded in the APP because this follows onto your statement.
If you still feel that there is something wrong then contact PP directly via wattBot, but first type "Message the Team" and post your concerns or revised reading, if this was your error PP may advise the same. Takes up to 2 days for a response back with the bot.
Have a great weekend and listen out for more feedback