TRS Limited Trying to rip me off Internet

 Sometimes in 2015 i came across the company's product(Eduros) online.The advert said they were free sample and asked me to pay for shipping only for the two bottles,which i did.The free samples of two bottles were mailed to me.Some 20days after the company charged my credit card with the sum of $139.97.I contacted my bank to file a report on the unauthorized transaction and file a dispute.My bank contact them and my money was returned back into my account.My bank also got me their phone contac because none was on any of the two bottles,and i called their customer service,i complained to their agent that picked my call about the illegal transaction and asked him why,he said to me that i clicked a box that authorised them to deduct the price of the two bottles from my card if i failed to call to cancel within 14days,i was deeply shocked about this strange information,and i told him that that was not true because i didn't see any box that says so neither did i click one.I further told him that i still have their products here because i only took few capsules from the two bottles,i didn't like the way my body reacted to it and i immediately stopped using it.He asked if i wanted to return it and i said yes,he promised to send me a return label which he never did till date. But in April 19 2017,almost two years after,i got a mail from Berman & Rabin saying i was owning TRS limited the sum of 139.97.I replied the mail seeking detail of such strange transaction because i never knew it still exist.Details were send to me and it was on same products (eduros). I was told in the mail to pay up or call them for payment arrangements within 30 days or else further action would be taking. I have called them once but no one picked my call but i left a message on the phone. I'm not owning them no money and i still have their products with me if they want it back.Why did they wait for two years before getting in touch with me?This is an attempt to rip me of my hard earned money.