Caroline Flint has received an apology from the 38 degrees campaign for suggesting that Ms Flint was a Tory MP and, by implication, supported the cuts in tax credits.
Caroline Flint has challenged Ministers over tax credit cuts, and spoke in a debate against the Government tax credit proposals.
The text of their apology is printed below.
From: Laura Townshend [mailto:email@example.com]
Sent: 18 October 2015 22:14
To: FLINT, Caroline <firstname.lastname@example.org>
Subject: Apology from 38 Degrees - emails on tax credits
Dear Caroline Flint,
I want to apologise for a mistake we made this weekend as part of our campaign to protect tax credits.
In some constituencies, including yours, we sent some 38 Degrees members an email which mistakenly implied that they had a Conservative MP. This means that you may have received emails from your constituents about tax credits which assume that you are a member of the Conservative Party.
Earlier this evening we sent apology emails to all of your constituents who received the incorrect email, letting them know about our mistake and highlighting times when opposition parties have spoken out against the cuts. A copy of this email is below.
38 Degrees is all about making it easier for people to engage meaningfully with politics, so this is a really serious mistake for us to have made. I'm very sorry and more than a little embarrassed. I'll be sitting down with the 38 Degrees staff team this week to work out how this happened and identify any processes we need to change in order to stop it happening again.
Despite our mistake, I hope you find it encouraging that so many of your constituents are campaigning against the cuts - and that 38 Degrees members in Conservative constituencies have so far sent around 10,000 emails about tax credits to their Conservative MPs.
If you'd like to discuss this, please call me or reply to this email. My phone number is below.
With best wishes and apologies again,
07710 392 372
Apology to members
Yesterday, you received an email from 38 Degrees asking you to email your MP, Caroline Flint, about cuts to tax credits. These cuts could push many families into poverty.
We made a mistake. Some emails - including the one we sent to you - mixed up the political parties that MPs belong to. Our email implied that your MP was a Conservative, when they're not. It also meant that some of the suggestions we made about what you could include in your email to your MP were inaccurate. We’re very sorry about this - it’s unfair to both you and your MP.
The 38 Degrees staff team takes this sort of thing extremely seriously, and we’ll be sitting down on Monday to come up with a plan to make sure that this doesn't happen again.
We’ll also be emailing your MP, Caroline Flint, to explain the mistake, and apologise.
Your MP still has power to affect the decision over tax credits - after all, they're elected to represent your area. Just this weekend, the SNP and the Labour Party have been speaking out against the cuts - and this morning the Labour Party confirmed that it's officially opposed to them.  The Green Party and the Lib Dems have spoken out against the cuts too. 
So if you’d like to email your MP to thank them for their party’s opposition to the cuts - and to encourage them to do all they can to publicly oppose them - please click here:
We’re really sorry,
Amy, Laura and the 38 Degrees team