Hey MJ, Remember that the PPP is the same as the Anti-Theft code. What is the make and model number of your phone otherwise. To clear the PPP, you need to have a new firmware flashed into your Android power device. Because firmware files differs from model to model, we will need to know the model number of your phone to be able to assist further.
Edit: You will sadly need to take the Mobicel Vivo to your retailer (the shop you purchased it from) or contact Mobicel's support directly as the Mobicel Vivo's firmware pack is sadly not made publicly available online for download and reloads. In fact, Mobicel's device firmware packs as hardly if ever made available online for free download.