I travel a lot and it constantly astounds me how many hotels want me to email them credit card details to secure a reservation. I had a hotel (in Spain) lose my

I travel a lot and it constantly astounds me how many hotels want me to email them credit card details to secure a reservation. I had a hotel (in Spain) lose my reservation because I insisted on calling them up and reading my number over the phone rather than sending it via email. Frustrates me immensely.