Pierre Krynauw Attorneys

I have been receiving text messages from these attorneys for the past 6 months supposedly over a shortfall account when i responded and asked send me the proper details including my authorized signature to prove that i actually have this on my name they didnt bother responding so this morning im again awakened by the same text message now threatening me with the sherrif of the court action etc..... So i again contacted them and guess what they couldnt provide me with any of the supposed documentation i have requested this is after 2 months mind you and no response but yet they have the temerity to still harass me with these text messages not offering any information so is this how attorneys conduct their business by harassing law abiding citizens?