Who called from 7344433003

my wife recived message from this number and i recived same message from 1-734-238-1700.

I may be ignorant here, but, why is anyone allowed to send messages without reply information? Why is there always a way for this kind of crap to happen! So far I have only received about 10 similar messages in the past month, but, if it continues, I am going to get a refund for these nuisance messages!

COOP Services CU : Your CARD has been BLOCKED. Please contact us at 734-443-3003 to REACTIVATE your CARD.

SCAM....

Do not return their call.

I just got this text today from 734-443-3003 saying
CO-OP Services: Your CARD starting with **** has been LOCKED. Please contact us at 734-443-3003 to REACTIVATE.
Strangely enough, the first four numbers of the card they gave match my the numbers on my mom's card...I don't have one. Anyhow, this must be a scam.

Got this msg:
COOP Services CU : Your CARD has been BLOCKED. Please contact us at 734-238-1705 to REACTIVATE your CARD.