RE:Google trends Banxa in Nigeria? This is interesting. Looking at the Goolge trends it's really global. Nepal, Chile, Netherlands...
Not to burst bubbles, but likely other reasons. On Google Translate typing in "Banxa" detects it as Hausa, a sub-Saharan African language. Typing in "Ban Xa" is Vietnamese. And "Ba Nxa" gives Xhosa, a South African language.
That being said the name is interesting and has a global ring to it. Could help the company going forward.