Junior,

Did your wife ever take and pass the English Language Test to level A1?
If yes it is still valid ? (some only have 2 years validity)
Did she include a valid pass certificate with the application? (Section 8 FLR(M))

If she did not then when does the current FLR(M) actually expire?

Can you find time available to have her pass an English Language Test at A1 level?

If yes, then arrange for her to do that test.
Submit FLR(M) application by registered post before existing leave expiry.
Follow up soonest with the English language A1 certificate.

This page describes the English language requirement for non-European migrants who are applying to enter or remain in the UK as the husbands, wives and civil partners of British citizens and people settled here.

Applicants for visas and permission to remain in the UK (known as 'leave to remain') must meet this requirement, unless they are exempt (see below). The requirement was introduced on 29 November 2010.