about accent.

[My mobile phone was broken.
Because, I dropped my mobile phone...
I had bought the mobile phone in Ireland.
I didn't have mobile phone in Japan.] I bought a cell phone in Ireland, but I dropped it and it broke, so I didn't have it when I was in Japan.
[Why does a mobile phone break easier?
and sooooo noisy!!!!! ] Why are cell phones so noisy, and why do they break so easily???
I don't like any mobile phones. I don't like any cell phones.
And I also don't like taht must reply to friends. And I don't like having to reply to all my friends.
I have been tired by mobile phone. Cell phones tire me out.
But, I heve been having to bring that. Because, I am vistor. But I've had to carry one around because I'm traveling/visiting.
If I don't have a phone number. I can't do many things. If I don't have a phone number, there are a lot of things I can't do.
[Today, I had brought the mobile phone to where I bought the mobile phone.
I thought they couldn't fix my phone.] Today, I brought the cell phone to the place I bought it, thinking they wouldn't be able to fix it.
But, I could ask to fix my phone. It doesn't need any money. But I thought I would ask anyways. (not sure what you mean by "it doesn't need any money")
But, I couldn't follow what a staff said anything. I couldn't follow anything the staff said.
The staff just said "we can send the phone to be fixed". They just said, "we can send the phone to be fixed."
[But, I asked the staff over and over again.
at last, I relied on writing what the staff said.] I asked the staff over and over again, but I ended up just relying on what they said.
[I think I could follow some words. for example "fixed" or "send" or "phone".
I have doubted what he really said these words or something.] I think I could follow some words, like  "fixed" or "send" or "phone", but I'm not sure if he really these words or something else.
I might not understand accent especially Irish. I might not understand his Irish accent.
Because, In my case, I have studied in American English. Especially since, in my case, I've studied American English.
But, I am living in Ireland. Nevertheless, I'm living in Ireland.
What should I do to follow they said? How should I follow what the staff said to do?

Good job! がんばってください！