ESOL Entry Level 3 for CEFR B1

[SJ3072018]

Hi,

My wife is applying for FLR (M) extension next month. When she first applied for FLR (M) back in 2015, she used her ESOL Entry Level 3 certificates for English language requirement. She passed these ESOL tests in 2014.
I spent hours reading various forums giving confusing information on this. Some says ESOL is valid only for 2 years and no longer accepted. Some says other way around. The question I have is, can she use the ESOL certificates now when she apply for FLR (M) extension?
Thank you.

[Casa]

ESOL is no longer accepted and your wife will need A2 level English from the UKVI approved list of tests/test providers.