Sometimes, a silly mistake like uploading incorrect payment details can end up costing you dearly. Just ask our 19-year-old protagonist, who has now racked up a bill of $838 on T-Mobile across 3 smartphones, an Apple Watch, 2 AirPods, and 1 tablet.

We've sort of become accustomed to seeing teenage inanity. And today, we've received bucketloads of that stuff, courtesy of a .

Basically, our protagonist typically pays the bills associated with not just his smartphone but also two others that belong to his siblings. He also handles any ancillary charges emanating from 2 AirPods, an Apple Watch, and 1 tablet.

As per our protagonist's own admission, he entered the details for a wrong payment card on T-Mobile's system, resulting in his failure to make payments for two consecutive months.

His monthly charge amounts to $319.16. For two months, the bill swells to $638.32. To restore service, T-Mobile typically charges between $20 and $23 per device. Assuming a $23 charge for each of his seven devices, this cost alone amounts to $161. This brings the total cost so far to $799.32. Finally, T-Mobile also charges a late fee that likely amounts to $38.88, bringing the grand total to $838.20.

The moral of the story is that you should always try to pay your carrier bills on time. T-Mobile and other carriers have stacked their payment terms in such a manner that you will face progressively punitive charges as the delinquency becomes longer. And finally, pay close attention to your payment details as you are entering them for a critical service.

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