Servus Credit Union Mastercard
Closed account

I just got another credit card sent to me (renewal) I paid $400 this month and went to use it and it says declined.

I looked at my credit report and it says closed by grantor, I have have had this card since 2000, I went from a limit of $500 to $4600 in these years, and make my payments all the time.

Now in this time I have had other credit cards and such, and the last year had a problem paying on them, but not this one, this one is always paid.

Why would they close it?