Why she was hiding mobile phone before day of marriage?

A Novel 'I've Got Your Number' is written by New York Times bestselling author Sophie Kinsella which consists of 448 pages.

I've Got Your Number: A Novel - Book Review

The marriage of would be couple Poppy Wyatt and Magnus Tavish couldn't take place. Magnus was one of the best choice for her to marry. The hotel that Poppy was staying, during the fire drill, couldn't traced her engagement ring. In another mishap, her mobile phone lost or somewhere perhaps stolen by someone, couldn't figure out, she had lost her engagement ring and mobile phone. Luckily, when Poppy was wandering here and there in the hotel lobby, saw mobile phone lying in trash can so she lost no seconds and picked up instantly. Next thing that Poppy did she gave her mobile number at hotel reception, requested to call her lost engagement ring if found.

But without realizing how bad it was to read personal text messages from mobile that Poppy picked up from trash, now in her personal use for calling, belonged to businessman Sam Roxton who asked her to return his mobile phone immediately and showed his displeasure.

Unexpectedly, the contact between Poppy and Sam was made on the mobile phone that she had been using. It was a humorous moment when they were sending and receiving text messages and emails, calling to each other, Poppy received unknown phone calls and text messages on phone that supposed to be read by Sam. It was also hilarious moment during her marriage preparations, when she had to hide her phone from parents of Magnus.