Martin Lewis Mobile Tariff Audit
An actionable process to audit your mobile phone bill using the Martin Lewis mobile tariff audit method.
4 time blocks, 15 minutes in total.
Time blocks
- Text INFO for Contract Status: 3 min
Send INFO to 85075 to check out of contract status and exit fees - Audit Actual Data Usage: 3 min
Check handset settings to calculate average monthly gigabytes used - Search Cheap SIM Deals: 4 min
Filter comparison tools for your required monthly data ceiling - Haggle with Retention Team: 5 min
Call your provider and ask for price matching before switching
About this routine
The Martin Lewis mobile tariff audit is a structured approach to lowering monthly phone bills without sacrificing connectivity. Millions of phone users remain on overpriced contracts long after their handset is paid off. Running a quick check reveals whether you are free to switch or negotiate.
The process centers on discovering true monthly data consumption rather than overpaying for unused gigabytes. Sending a single text message confirms if out of contract penalties apply. With real usage numbers in hand, comparison searches take only minutes.
Equipped with market benchmark rates, a brief call to customer retention frequently yields immediate price drops. If your current network refuses to match the top market deals, requesting a switching code takes seconds. You can run this sequence whenever your contract nears its end.
Why this routine works
- Identifies hidden contract end dates and exit fees
- Prevents overpaying for unused monthly mobile data
- Provides leverage to negotiate discount retention offers
FAQ
What is the Martin Lewis mobile tariff audit?
It is a step by step process to check mobile contract status, audit data usage, compare SIM deals, and negotiate a lower monthly bill.
What text number checks mobile contract status?
Texting INFO to 85075 in the UK reveals whether you are still under contract and if any early exit fees apply.
How do you haggle with a mobile provider?
Find the cheapest benchmark deal online, call customer retention, state that you plan to leave, and ask them to match the lower price.
Sources
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Updated August 2026
Compiled from public sources and reviewed before publishing.