@EA_Leeuw thank you for taking the time to do the research and give a reply with actual answers.
I cancelled the EA Play subscription held separately last night after posting my query here, hoping that it would work seamlessly.
This separate subscription was not made by myself as previously noted and also discussed multiple times in different support chats with advisors, so please refrain from saying I did both of these willingly, because that is very insulting. This is why I asked for the refund in the first place which was refused on multiple occasions.
I also asked about cancelling my separate subscription again in the support chats and was cautioned against it. I’m sure you can review this also.
Thank you for the confirmation regarding EA Play Pro, disappointing an additional option isn’t included for Xbox Game Pass Ultimate members on PC but understandable.
Thanks for taking the time and showing some actual good customer service unlike some of your colleagues.