"undesirable practice"
means any act prohibited, or any failure to perform any act enjoined, by section 59(1), in relation to a particular mutual bank or mutual banks specified in a notice referred to in section 59(2)(b) or all mutual banks, includes any act which in terms of a notice referred to in section 59(2) constitutes an undesirable practice for such particular mutual bank, such specified mutual banks or all mutual banks, as the case may be;