yes BA did (procure PLZ-45), many sources told me that, did you check the link ? BA procured both of them, they have different range.
Yes, the following international link says BA procured 40+ PLZ-45 probably in 2012.
The PLA PLZ45 Self Propelled Gun | TankNutDave
Now, wiki says BA has three battalions of tracked PLZ-45 placed in three different cantonments. I assume one battalion consists of 24 to 30 howitzers. Please correct me.
Confirmed Operators:
1) Bangladesh: Three battalions ordered in 2009 for the Bangladesh Army Artillery units based at Chittagong, Ghatail and Savar cantonments & delivered between 2010-2011.
2) China: Used by the People's Liberation Army.
3) Kuwait: 27 PLZ-45's (to form a training platoon and the first battalion) ordered in 1997 and delivered in 2000 - 2001. 24 more howitzers (to form the second battalion) were ordered in 2001 and delivered in 2002 - 2003. 24 more howitzer guns (to form the third battalion) were ordered later and delivered in 2003.
4) Saudi Arabia: (54) In 2007, it was reported that the Saudi Arabian Army had decided to order two battalions (54 units) of the PLZ-45 artillery system. In August 2008, China signed a contract to provide Saudi Arabia with one battalion i.e. 27 PLZ-45 155 mm self-propelled howitzers.
Another contract to supply one more battalion (27 more PLZ-45 self-propelled guns) was signed later in the month. The howitzers were delivered between 2008-2009.