Charge for replacement modem

[H&B2025]

My router was faulty. I contacted Talk Talk. After long chat on line they understood the problem and said they would send me a replacement. 

No charges were mentioned and now I have been charged £84.95 !!!

I believe this is incorrect. How do I get this reviewed and refunded?

[Debbie-TalkTalk]

Hi H&B2025

I'm really sorry to hear this.

Please can you add your name and TalkTalk landline number to your Community Profile, I can then take a look at this for you.

Thanks

Debbie