Who called from 6369477830

Left a message about fixing unknow interest rate to 1.5%.  Message started as if it was about half way throught the message, and ended as "last time for a courtesy call" please call 1888 442 0881.  message stated that since I am only paying minimum on ??? account this may help make my payment in half.  I don't make minimum payments and no clear account was referenced.  probably fraud.  I'm calling sprint (again) to let them know someone is fraudulently calling from this number.

Just got the same call with the exact same details. They left voicemail about cutting my payments in half.

Just got called. There was a man on the other line, but I lost my signal.

They called, a mad was on the other line. He said "Um Hi" and that was it. Call lasted 15 seconds.

The same must have just called me...