Verizon wireless has just announced what will amount to one of the largest refunds in telecommunications history. The company will refund up to $90 million to 15 million of their customers who they wrongly charged in the past.

The refund will be pasted along to Verizon’s customers via a $2 to $6 credit on their bill in either October or November. Apparently some customers were billed for data usage even though they didn’t have data usage plans. The telecommunications company has stated that software which was already built into certain phones is the culprit. The FCC has stated that they received hundreds of complaints about inaccurate bills from Verizon in the past few years. The refunds are part of a settlement that Verizon has reached with the FCC.

“Verizon Wireless values our customer relationships and we always want to do the right thing for our customers,” stated Mary Coyne, the deputy general counsel for Verizon Wireless.

Verizon formed in 1983 after the break up of AT&T. The company had $107 billion in revenue last year alone, and employs over 220,000 people worldwide.