RCS refuses to fix their own mistake and continues to ignore me.

I refer to my earlier review from the twenty-ninth August entitled "RCS ignores queries and refuses to fix their own mistakes". This was regarding a query I had tried to get them to resolve since the twenty-fifth July via email, telephone calls and website queries to no avail (every one of my attempts was just blatantly ignored even though receipt of these was acknowledged by them). I am now even more disappointed and frustrated since they had the audacity to respond to my earlier post on this platform and say that they had escalated my query and someone would look into it and contact me. Up to today, I have heard nothing from them even after I responded on the previous post. RCS, why even reply to say you are looking into it if you are not and just plan on ignoring the query (which by the way was regarding something you had absolutely no right to do in the first place)? RCS truly has the most horrible customer service and don't care about their customers.