The salary trajectory of a Customer Service Assistant 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 Assistant at Shell is £51,469 per year or £25 per hour, but some professionals have reported earning up to roughly £84,576 per year (90th percentile). The typical pay range is between £39,911 (25th percentile) and £67,092 (75th percentile) annually. This is based on 14 salaries submitted by Shell Customer Service Assistant professionals on Glassdoor, as of Jun 2026.