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Thank you!! I actually did raise the issue with the letting agent and she was just waffling on saying a whole lot of nothing really. I think it's really unfair - if they had a 'bad experience' with a 25 yr old they culdn't ban all of them!!
I told the letting agent it's her loss as they are loosing out on our money and on us as responsible tenants. What I think is frustrating though is that they won't care, they'll rent it to someone without kids and it's us left with less choice!!
Grr, it's really riled me!!