TRYING TO UPGRADE MY PROFILE AT MAKRO FOR ON LINE BUYING

I'm having a problem trying to get my Makro card updated to buy on line and you can't believe that they can't help me !!! I've had my Makro card for over 50 years and can use it with no problem buying from the store but because i want to buy on line due to the covid-19 lockdown and us oldies like my wife have been advised to stay safe must endeavor buy on line !! so I've sent Makro my updated details needed for on line buying but they've said the cannot process my application because they details they have don't tally up with my new profile details !!! As much as i try to explain to the the woman i'm dealing with at their support centre she just cannot help me !!!! Frustratingly i don't know what more to do as my card is very old and there wasn't any need to update it buying in store but it doesn't work for on line buying !!! So trying to explain or get through to this person is like pulling teeth, as she just can' understand that my details have obviously changed over 50 years !!!! So unless somebody at Makro knows how to do what i'm asking there's no way i can buy from them on line !!!! So maybe Makro don't need any more business hence putting staff at the support centre that can't help a customer who eventually just trows in the towel and goes elsewhere !!!! so i said to this female i'll go to Hello Peter to see if they can help me !!! Please see what you can get from them and let me know as they might jump when they get a call from Hello Peter !!!!! Thanking you Regards E.G.W. Chaplin (Pensioner)