Harassed by consultant

I got an sms demanding payment or legal action will be taken against me. On calling I spoke to an incredibly aggressive consultant who simply refused to be forthcoming with information. <br> <br> My battery died and as I was charging, I received a second SMS demanding immediate response to make payment. I called again, spoke a to a lady, who after me explaining how my phone died and I got cut off from another consultant and was inquiring about this account simply demanded a date for the debit. I had to raise my voice to be heard - whereupon I found out that my account was handed over to them 5 months ago.<br> <br> She said she would follow up after having heard my side. I then also asked for time to do my own investigation and the moment I hung up I received a third email demanding debit arrangements be made.<br> <br> If this is an automated service they need to relook it. The first consultant even went as far as saying they have been looking for me for a while and have 10 recorded smses sent from their system - if 3 fire off in ONE day that means theres a possiblity they have not been searching for me over much - I am NOT that hard to find, 3 found me in one day.