T-Mobile just raised one of its monthly fees again, and customer frustration is at an all-time high. Nearly seven out of every ten T-Mobile customers say they’re thinking about jumping ship to another carrier, according to a recent poll. The company increased what’s called the Regulatory Programs & Telco Recovery Fee by 50 cents for voice and data lines earlier this month. This brings the charge to $4.49 per voice line and $2.10 for mobile internet customers. … [read full article]