This Philadelphia man took a special offer from T-Mobile that seemed ‘too good to be true’ — and his next bill proved that gut feeling right

A few months after that internet connection was set up, a T-Mobile sales rep called Dipiero offering what sounded like an incredible deal if he migrated the family’s phone plan over to the business account. According to the sales rep, for just $170 a month, the Dipiero family would get four free iPhones — three iPhone 16 Pros and one iPhone 15 — as well as upgrades to the family’s modems.

“I thought it was too good to be true,” Dipiero told NBC10 Responds.

Despite Joe's reservations, the Dipieros made the switch. But about a month later, Joe logged into his T-Mobile account and found a bill for $515.90 — more than three times the amount that he agreed to.

‘There’s just no way this is happening’

Dipiero went on to spend several months locked in a battle with T-Mobile over his bill. After struggling to get in touch with the rep who sold him the plan, the rep eventually told Dipiero that the $515.90 bill was an error and that T-Mobile was “looking into it.”

However, Dipiero was shocked when the next month’s bill came with a $821.59 charge.

“I was like, ‘There’s just no way this is happening,’” he said.

When he told the sales rep he was ready to send back the phones and cancel the plan, the rep told him not to pay the bill, assuring Dipiero that T-Mobile was “taking care of it.’” But the rep was wrong. Dipiero then started receiving repeated text messages from T-Mobile threatening to shut off his phone for non-payment, which the carrier eventually did.

“And at that point, I lost it,” Dipiero recalled.

Sick of getting the runaround, the Dipieros reached out to NBC10 Responds for help. When the investigative team reached out to T-Mobile for comment, the company once again said it was “looking into it.”

Two weeks later, T-Mobile said the matter had been forwarded to the company’s Care Team. A senior manager then reached out to Dipiero and said T-Mobile would take care of everything.

Dipiero’s next bill, coming in at -$334.45, reflected that promise. That negative balance was the result of T-Mobile clearing the previous bills and crediting the Dipieros’s account for fees paid during the ordeal.

While T-Mobile told NBC10 Responds that it could not share customer details, the company did provide a statement.

“If customers make changes to their account after their initial account setup without working with our Care Team, there could be impacts to their promo eligibility,” T-Mobile said in its statement.

The Dipieros, however, only worked with the sales rep that sold the plan to the family and were never advised to speak with the Care Team.

T-Mobile's alleged overbilling is well documented

This is not the first time T-Mobile has been in the news over accusations of overcharging customers.

In 2024, a T-Mobile customer was overcharged $5,704 over 23 months after he canceled six business lines, according to the U.S. Sun. When the customer raised the issue with T-Mobile, the company said it would only give the customer a refund from the last 90 days.

Now, nearly two dozen frustrated customers have launched a class-action lawsuit in California against T-Mobile, claiming the company has been charging customers a hidden fee disguised as a government-mandated charge.