In 2011 I had an identical problem and I had it fixed at Pattaya Memorial Hospital within two days of inspection. Cost was 50,000 baht. It was an excel;lent job and I have had no problems since. Incidentally, Bangkok Pattaya Hospital gave me an estimate of 150,000 baht whilst the ever generous Pattaya International Hospital estimated 120.000 for the same operatrion.