Had my phone for just over 3 months and now the internal speaker is playing up. sometimes it will work other times all i can hear is muffled sound. i hate having to talk to people on loud speaker. Whom do i contact to get this sorted?
Welcome to the community and thanks for posting. I'm really sorry to hear about the trouble you're having with the speaker on your Xperia M4 Aqua. I'd like to help you get this fixed.
You could either login to your mobile account here where a repair can be requested by clicking plan and device at the top of the page, then click 'phone repairs' half way down the page on the left. Alternatively you can give us a call on 789 or 0345 6000 789 so we can take a look at this for you.