National Credit Services, Inc. Debt Collection Complaint

National Credit Services, Inc. Debt collection department,

Other (i.e. phone, health club, etc.) Cont'd attempts collect debt not owed Debt is not mine Washington

I filled out a form of cancellation for a - located in -, Washington and they misfiled it back in late-/-/-/early-/-/2016. The debit card connected to membership, around the same time of my membership cancellation, got lost so I cancelled it as well. I did n't inform them of the card cancellation because I thought I had cancelled my membership effectively. They continued trying to charge my cancelled debit card into the coming -/-/- before they informed me that the National Credit Services would take on the debt. National Credit Services sent mail to an old address of mine to which I could not retrieve it. They are trying to collect debt from me, but I should not have to pay this debt because the gym themselves misfiled my cancellation. What if they did this on purpose to profit off my cancellation? They claim I need proof that I cancelled but after filling out two cancellation forms ( another one in -/-/- to stop further charging to my account ) I was not presented with any certificate of proof.