The Royal Mail "Parcel is waiting for delivery" text message below from telephone number 07483881576 is a scam. The link in the fake text goes to a fake Royal Mail website that will ask you for payment. It asks for bank details and personal information. I contacted Royal Mail and a representative said it is a scam and they would never ask for banking or personal information.
The 07483881576 Royal Mail Parcel Scam
From: 07483881576
Royal Mail: Your parcel is waiting for delivery, please confirm the settlement of £2.99 on the following link: hxxp:/royal-item-redelivery-fees.co.uk