In an HBR article, entitled 'Why your customers don't want to talk to you' the authors argue that customers prefer self service channels to face to face interaction with employees. They also raise the concern that this may be because customers 'never wanted the kind of relationship that companies have always hoped for, and that self service now allows customers the "out" they've been looking for all along.' Quite an interesting thought.
They also claim that channel hoping, customers' movement from channel to channel when interacting with a company, increases the likelihood of them being disloyal. That is an easy one to fix. Just design your service holistically. Look at all your touch-points as part of the same service, not as independent channels.
You never know maybe your customers do want to have a relationship with you, but at the moment that relationship is painful... for them.