Don’t know about Plusnet’s customer service but transferring a number with a PAC would normally be a day’s interruption of service at most.
Could you confirm what you mean when you say they turned your old number off though? If your EE mobile contract was cancelled before the porting took place it’s going to make things difficult.
What should happen is you’ll have 2 SIMs and 2 mobile numbers with the contracts running side by side until the porting date. When the port takes place the old service will end without further input from you.
Sent Pac request on friday 2nd , My original number with EE went dead on wednesday 7th afternoon , had to put new plusnet sim in etc , so got another number, I contatced them the next morning as it hadnt ported overnight and all they keep saying is , its been passed onto their operation dept to sort out why the porting hasnt gone through and all i keep getting now is , it will take another 2-5 days to get them to at least give me a porting date !! … all i keep getting is apologies and sorry we cant help you until the OPS team have sorted it , so basically im fubarbed until then …. My biggest concern is losing my original number as i use it for so much