SAFARICOM 4G+(lte+)

Hello guys, i have Pocophone F1 with February 2020 security patch. Now i have volte enabled but I’m unable to get the 4G+ or LTE+ icon
I’ve seen guys with same phone in other countries access same 4G+ or what could be the problem.
Currently i know safaricom has 4G+.
Someone enlighten me why I’m unable to access 4G+

Were you able to access it before?