It seems as if 18442399803 is being used by scammers pretending to be from Amazon. Therefore, online users who are asked to call 1-844-239-9803 are asked not to do so. And, if they received text messages from the same telephone number, they should not follow the instructions in them.
Online users who have called 18442399803 and given out their account credentials or banking information are asked to contact their banks for help, change the password of their online accounts, and contact their local authority if they gave out other sensitive information.
If you have received a call or text messages regarding telephone number 18442399803, please help others by sharing what you know in a comment below. Please provide as much information as possible. This alert will be updated as we get more information.