Looking for accent removal classes near Kakkanad or Kochi

I have a strong regional accent, and I’ve noticed that overseas clients often struggle to understand me during calls, leading to frequent repetitions. I recently moved to a role that requires constant communication with clients, and I’d like to work on removing my accent to make my speech clearer. I’m not looking to adopt an American or British accent, just to remove my current one. However, if British accent training is the only option, that’s fine since most of our clients are British. Please suggest good institutes or trainers near Kakkanad that specialize in accent removal or related training.