Personal Loan - taking too long

It's now been more than a week and Sanlam Personal Loan is still "verifying my residential address." When I complained this morning about the lack of communication, the agent said they communicate through phone calls and voice mail messages! Can you believe in today's age of technology, you leave voice mail messages? And sorry for Sanlam, but my phone blocks spam numbers, so how can you use this as the only communication method? Why not communicate properly via emails? Reading the other reviews of Sanlam, I regret applying at Sanlam for a loan. They used to be a reputable company, but now I understand why they receive so many complaints regarding their customer service.