The salary trajectory of a Customer Service Associate ranges between locations and employers. The salary starts at £0 per year (estimate) and goes up to £0 per year (estimate) for the highest level of seniority.
The estimated average salary for a Customer Service Associate at Three is £48,898 per year or £24 per hour, but some professionals have reported earning up to roughly £71,819 per year (90th percentile). The typical pay range is between £40,323 (25th percentile) and £60,000 (75th percentile) annually. This is based on 5 salaries submitted by Three Customer Service Associate professionals on Glassdoor, as of Jul 2026.