I don't know whether to laugh or cry

Have enjoyed my account for 40 years. I have a store card but stopped using it about a year ago when I went on pension and found it easier to control my budget using my credit card for all my requirements. I contacted all my suppliers to update my new contact information but for some reason, being on the phone for ages, the Woolies computer could update my request. Having low mobility it's easier to have my goods delivered so I downloaded the app filled in all my new information and everything ran superbly. UNTIL I received a call from Blake & Ass demanding????R from me. I disagreed and requested a statement. I was bombarded by calls,every day for a month, I kept requesting a statement as I had no way of checking if I'd maybe used the storecard in error. Eventually about February I finally received what was supposed to be the long waited ellusive mail only to discover no attachment and the only thing I could download was a 'disclosure'. My friend informed me she downloads her statements via the App. Ahh maybe [why didn't I think of that] so with much enthusiasm I did exactly that only to realize my mew information had not been updated on my storecard and I couldn't update it as the PIN was going to my old cell number. Here I am in April still none the wiser, waiting to be carted off to jail or to die whatever comes first. AND I'm still receiving calls from Blake & Ass....