I'm sorry about the issue. Was it working fine previously?
What's the model of your Samsung mobile?
Is there any error or message when connecting the Samsung mobile phone to your wi-fi / wireless network name in Settings -> Wi-Fi?
Do you mean the phone works fine when it is connected to the wi-fi/wireless at the Vodaphone shop?
Also, does your laptop have windows xp, vista, or 7 or 8 or 10? Or is it a mac laptop?
Please reply at the box below. Thank you,