If you need to contact Wells Fargo customer service, there are a few different ways to do so. You can call their customer service phone number at 1-800-869-3557, chat with a customer service representative online, or visit your local branch. Suppose you have an issue that needs to be resolved urgently. In that case, it is best to call customer service or chat with a representative online. However, suppose you have a question or inquiry that is not time-sensitive. In that case, you can always visit your local Wells Fargo branch.