Given that today's consumers are more informed about what they want and how to obtain it cheaply, managers must be more strategic and pro-active while making decisions relating to price system. In a selected South-West retail outlets of the Nigerian National Petroleum Corporation (NNPC), this study investigates pricing strategy and its relative effect on customer retention. Questionnaire was used to collect primary data from a sample of 384 customers drawn from six mega stations and twelve affiliate stations located in the region. Multiple regression analysis was used to test the hypotheses formulated. Results indicated that pricing strategy has a significant impact on customers' retention. The study concluded that pricing strategy adopted in NNPC retail units must be in tune in determining customer retention, thus, it was recommended that management of NNPC retail outlets must consider pricing system as an integral part of their marketing strategy.

Globally, governments have been embracing e-payment system to fast-track revenue collection, and to equally minimize incidence of fraud. However, a major threat to the smooth operation of e-payment in Nigeria is security related issues. Therefore, this study examined perceived security and incidence of fraud, with particular reference to Kwara State Internal Revenue Service (KWIRS), Nigeria. The study obtained a sample of 285 from a population of 996. The findings demonstrated that perceived security dimensions strongly contributed to reduction in incidence of fraud. The study concludes that improvements in e-payment system security, particularly with regard to trust issues, have a significant impact on the amount of fraud reduction in KWIRS. It is recommended that the government ensure the expansion of the country's e-payment system, which necessitates adequate collaboration with the private sector in expanding the existing internet facilities, in order to improve the convenience of use and safety for users.