Bought a Garmin 45s for Xmas to replace a 235 and previously a 35. The first one I couldn’t log onto gps at all so was sent replacement but the second one they sent me just says waiting for gps although does eventually find gps after 10 mins if I start a run. I can’t get hold of Garmin and at all despite emailing an enquiry twice so am totally fed up - how do I get Garmin to respond- I’ve never had a problem getting gps to log in before