You could try setting up a standing order using the bank details which are published at the end of every article:
Account name
MURRAY CJ
Account number 3 2 1 5 0 9 6 2
Sort code 6 0 – 4 0 – 0 5
IBAN GB98NWBK60400532150962
BIC NWBKGB2L
Bank address Natwest, PO Box 414, 38 Strand, London, WC2H 5JB