This is from MidwestDrummer detailing how to do this step by step
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For those looking to contact Sprint about this issue (and attempt to cancel your contract sans the ETF), here's a step by step on what you should do.
DISCLAIMER: By no means am I making an sort of guarantee about the results of your attempt. Sprint CSR's interpret many situations differently, so while one may be extremely lenient and grant your every wish, another might be having a very bad day and shoot you down. If you don't get the response you're looking for, try again. Don't write them too often though. Excessive contact/demands will lead to notes being put on your account.
Step 1: Contacting Sprint Customer Service
One could log into their Sprint account online, and shoot a note to E-Care, but the online message box has a character limit. I find that it's much easier to log into my own email account, and compose my own note, with a length of my choosing.
But I don't know Sprint's email address! That's alright. I've got them for you right here:
[email protected]
[email protected]
[email protected]
[email protected]
What I like to do, is use
[email protected] as the main recipient address. Then I add the last 3 on a Bcc's (blind carbon copies). Doing this sends the same email to each Sprint E-Care email address, without letting each different recipient know you send it to another address.
Step 2: Wording Your Email
There's really no perfect way to word your email, when wanting to get out of your Sprint contract. Simply be firm, explain your intentions with relevant facts, and most importantly, be polite about it. Here's what I sent to Sprint: It's recommended that you slightly change it.