I need a professional customer service call center service

We need to collect cost of services rendered to customers that is overdue your role is to call around 100 individuals in uk
It will be the first contact and its main purpose is to present the information to customers confirm their e mail and send them documents if they require nothing more
We have the list and will provide you with the required data .We need full report of the calls within 5 days
If you have good back ground of telesales and customer service with britidh accent then this is an easy job