An alleged Magenta-branded memo's managed to find its way out of store lockup and land at the TmoNews offices, revealing some not-so-good news for potential future customers. Per the leaked document, T-Mobile's about to hike the price on its 5GB and 10GB Promotional Bundles data plans, starting as soon as April 4th. The changes would slap an extra $5 monthly fee on each Classic plan, boosting the 5GB to $35 / $40 and the 10GB to $65 / $70, however it'd only apply to customers signing up after the aforementioned April date. Perhaps, it's all part of T-Mo's "
